US632270A - Dice-shaker. - Google Patents

Description

No. 632,220. Patented sept. 5, m99.

" c. J. LEHMANN.

f DICE SHAKER.

(Application filed Nov. 10, 1898.1

m: ncnms PETERS :zo4 FuoYaLlTwc.. WASHINGTON. D. t;

NTTEE STATES PATENT EETCE.

CHARLES J. LEHMANN, OF HAMILTON OHIO, ASSIGN OR TO THE BRUNHOFF MANUFACTURING COMPANY, OF SAME PLACE.

DICE-SHAKER.

SPECIFICATION forming part of Letters Patent No. 632,270, dated September 5, 1899. Application filed November l0, 1898. Serial No. 696,024. (No model.)

T0 all whom t may concern.-

Be itknown that I, CHARLES J. LEHMANN, a citizen of the United States, residing at Hamilton, in the county of Butler and State of Ohio, have invented certain new and useful Improvements in Dice-Shakers, of which the following is a specification.

My invention relates to improvements in dice-shakers.

One of its objects is to provide reliable and simple mechanism for shaking or throwing the dice in an inclosing case.

Another object is to provide mechanism for imparting a compound vibration to the platform upon which the dice rest, which results in the thorough shaking or throwing of the dice.

The invention also consists in certain details of construction and arrangement, all of which will be more fully set forth in the description of the accompanying drawings,form ing part of this specification, in which* Figure lis a central vertical section through my improved dice-shaker- Fig. 2 is a section on line 0c or, Fig. l. Fig. 3 is-a perspective View, partly in section, showing the manner of vibrating the platform. Fig. 4t is a similar View to Fig. 3, showing the parts in another position.

A represents the frame of the shaker, and B a glass dome hinged thereto.

The operative mechanism consists of a platform or disk C, provided on its under side with a steml D, which passes through a hole in the conical bracket E and through an opening in the end of the crank-arm F, Which is mounted upon the Vend of a shaft G. This shaft G is rapidly rotated a number of times, first in one direction and then in the opposite direction, by means of a train of gears H I J on the shafts G K, said train of gears being driven by means of a segment L on the end of a hand-lever M, the outer end m of which projects through the side of the case A.

N represents the pivot on which the lever M reciprocates, and O a spring to return the lever to its original or normal position.

P P represent frame-pieces clamped together by screws p p and held to the frame A by screws tapped into the ears a. These frame-pieces P P serve to journal the shafts G K and lever M and support the conical ybracket E, which carries the vibrating disk.

R represents a lug or ear on the outside of frame A, against which the thumb or finger rests in operating the lever M.

S represents a chamber formed by the dome B and platform C, Within which the dice are thrown or shaken.

Referring to Figs. 3 and 4., it will be seen 6o revolutions, in each of which the platform C,

on account of the engagement of its stem D with the crank-arm F, assumes a series of positions of different angles, of which Fig. 4 represents the maximum. It will also be noted that as the crank-arm F rotates the plane in which the platform C is tilted continually changes and that the impulse imparted to the dice causes them to whirl or spin, thereby giving them a thorough shaking. As soon as the lever M is released the spring O revolves the shaft C in the opposite direction until the parts have resumed their original position.

I believe I am the rst to apply a compound vibration to the platform of. a dice-shaker, and I do not wish to limit myself to the particular mechanism employed to produce this result.

Having described my invention, what I claim isr 1. In a dice-shaker, a chamber to hold the dice consisting of a dome or cover and a vibrating platform, a stern projecting from the under side of said platform, a bracket forming a step bearing and support for said stem and platform at a point close to the platform leaving the lower end of the stern free to be vibrated laterally in various planes, an actuating-lever and transmitting mechanism, substantially as specified for vibrating said stem laterally, alternately in two or more different planes, substantially as specified.

2. In a dice-shaker, a chamber to hold the dice consisting of a dome or cover and a vibrating platform provided upon its under side with a stern, a bracket forming a step bearing or support for said stem and platform at 'roo a point close to the platform, leaving the lower end of the stem free to be vibrated, and lever and transmitting mechanism substantially as described for laterally vibrating the lower end of the stem, substantially as speciied.

3. In a dice-shaker a chamber to hold the dice consisting of a transparent cover and a vibrating platform, a stem connected to the under side of said platform, a conical bracket forming a step-bearing for said stem and platform, and lever mechanism substantially as specified for laterally vibrating the lower end of said stem in a series of different planes, substantially as specified.

4. In a dice-shaker a dice-chamber consisting of a dome or cover and a Vibrating platform, said platform being stepped and supported by means of a stem secured to the n nder side thereof, in a bracket or frame piece, a shaft carrying a horizontally revolving crank-arm engaging the lower end of said stem to vibrate the platform, and means substantially as shown for revolving said shaft` 5. In a dice-shaker a vibrating 4platform stepped and supported by means of a stem projecting from the under side thereof, upon a bracket or frame piece, a segment-lever held normally in a iixed position by means of a spring, transmitting-gears engaging and transmitting motion from said lever to a shaft carrying a horizontally-revolving crank-arm, which engages the lower end of the platformstem and Vibrates the platform, substantially as specified.

In testimony whereof I have hereunto set my hand.

CHARLES J. LEHMANN.

Vitn esses:

C. WV. MILES, OLIVER B. KAISER.

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